CN201322621Y - Throttle position sensor - Google Patents
Throttle position sensor Download PDFInfo
- Publication number
- CN201322621Y CN201322621Y CNU2008202145490U CN200820214549U CN201322621Y CN 201322621 Y CN201322621 Y CN 201322621Y CN U2008202145490 U CNU2008202145490 U CN U2008202145490U CN 200820214549 U CN200820214549 U CN 200820214549U CN 201322621 Y CN201322621 Y CN 201322621Y
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- CN
- China
- Prior art keywords
- pole piece
- throttle
- brush pole
- rotating arm
- position sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a throttle position sensor which is used to convert the position or the opening degree of an automobile throttle into voltage signals to be transmitted to an electric control unit so as to realize fuel injection quantity control under different opening degrees of the throttle. The throttle position sensor comprises a shell; a rotating arm, a potentiometer resistive film and an output socket are arranged in the shell; the rotating arm is rotatably connected with the shell and is driven to rotate by a shaft of the throttle; an electric brush pole piece is fixed on the rotating arm and rotates along with the rotating arm; the electric brush pole piece contacts with the potentiometer resistive film and can move on the potentiometer resistive film; the potentiometer resistive film is connected with the circuit of the output socket; and a torsional spring is arranged on the rotating arm. By arranging the torsional spring on the rotating arm to increase the damped vibration of the electric brush pole piece, the throttle position sensor reduces the shaking phenomenon when the electric brush pole piece contacts with the potentiometer resistive film, improves the stability of the voltage signal output of the sensor and ensures the working reliability and accuracy of the electric control unit ECU.
Description
Technical field
The utility model relates to the automotive control system technical field, especially a kind of throttle position sensor that can convert the position or the aperture of air throttle to voltage signal.
Background technology
In the control system of automobile, the effect of air throttle is the charge flow rate of control engine, throttle position sensor then is to convert the position of air throttle or aperture to voltage signal, be transferred to ECU (Electrical Control Unit) ECU, as the foundation of ECU (Electrical Control Unit) judgement engine operation condition, realize the control of the distributive value under the different solar terms door aperture.The voltage signal of reflection throttle position or aperture is to contact with the rotation of potentiometer resistance film by the brush pole piece to embody in the throttle position sensor commonly used at present, different throttle openings, also each is different for the voltage signal that inputs to ECU (Electrical Control Unit) ECU, the rotation of its center brush pole piece is driven by throttle plate pin, but because this sensor is to be used for automotive control system, during use, the vibration that running car brings, produce jitter phenomenon in the time of the brush pole piece can occurring and contact with the potentiometer resistance film, make the voltage signal instability transport to ECU (Electrical Control Unit) ECU, influence the working stability of ECU (Electrical Control Unit).
The utility model content
The technical problems to be solved in the utility model is: a kind of throttle position sensor is provided, the jitter phenomenon that produces when contacting with the potentiometer resistance film to improve the brush pole piece, the stability of raising sensor output voltage signal guarantees the reliable and accurate of ECU (Electrical Control Unit) ECU work.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of throttle position sensor, comprise housing, be provided with swivel arm and potentiometer resistance film in the housing, also be provided with accessory power outlet on the housing, swivel arm and housing are rotationally connected and drive rotation by throttle plate pin, be fixed with the brush pole piece on the swivel arm, the brush pole piece rotates with swivel arm, the brush pole piece contacts with the potentiometer resistance film and can move on the potentiometer resistance film, the potentiometer resistance film is connected with the accessory power outlet circuit, described swivel arm is provided with torsion spring, utilize the torsion of torsion spring, increase the damped vibration of brush pole piece, thus the jitter phenomenon that produces when improving the brush pole piece and contacting with the potentiometer resistance film.
In addition, housing and accessory power outlet are structure as a whole.
The beneficial effects of the utility model are: the utility model is by being provided with torsion spring on swivel arm, make swivel arm drive the brush pole piece on the potentiometer resistance film when mobile, increased the damped vibration of brush pole piece, thereby reduced the jitter phenomenon that produces when the brush pole piece contacts with the potentiometer resistance film, improve the stability of sensor output voltage signal, guaranteed the reliable and accurate of ECU (Electrical Control Unit) ECU work.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
1. housings, 2. swivel arms, 3. potentiometer resistance films, 4. accessory power outlets, 5. brush pole pieces, 6. torsion springs among the figure
Embodiment.
In conjunction with the accompanying drawings embodiment of the present utility model is further described now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of throttle position sensor as shown in Figure 1, has housing 1, be provided with swivel arm 2 in the housing 1, swivel arm 2 is rotationally connected with housing 1, driving swivel arm 2 by throttle plate pin rotates, be fixed with brush pole piece 5 on the swivel arm 2, brush pole piece 5 can rotate with swivel arm 2, also be provided with potentiometer resistance film 3 in the housing 1, brush pole piece 5 contacts with potentiometer resistance film 3 and can move on potentiometer resistance film 3, and housing 1 is provided with accessory power outlet 4, and potentiometer resistance film 3 is connected with accessory power outlet 4 circuits, described swivel arm 2 is provided with torsion spring 6, swivel arm 2 is driven by throttle plate pin and rotates, and utilizes the torsion of torsion spring 6 simultaneously, has increased the damped vibration of brush pole piece 5, in addition, housing 1 and accessory power outlet 4 are structure as a whole.When air throttle opens and closes, throttle plate pin drives swivel arm 2 and rotates, brush pole piece 5 fixing on the swivel arm 2 just moves on potentiometer resistance film 3, different throttle openings, potentiometric resistance value difference, by the accessory power outlet 4 that is connected with potentiometer resistance film 3, change the aperture of air throttle into resistance or voltage signal is transferred to ECU (Electrical Control Unit) ECU, judge the foundation of engine operation condition as ECU (Electrical Control Unit) ECU, realize the control of the distributive value under the different solar terms door aperture, owing on the swivel arm 2 that drive brush pole piece 5 moves, be provided with torsion spring 6, utilize the torsion of torsion spring 6, increased the damped vibration of brush pole piece 5, thereby improved the jitter phenomenon that produces when brush pole piece 5 contacts with potentiometer resistance film 3, improve the stability of sensor output voltage signal, and then guaranteed the reliable and accurate of ECU (Electrical Control Unit) ECU work
With above-mentioned foundation embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from the utility model technological thought.Technical scope of the present utility model is not limited to the content on the instructions, must determine its technical scope according to the claim scope.
Claims (2)
1. throttle position sensor, comprise housing (1), be provided with swivel arm (2) and potentiometer resistance film (3) in the housing (1), also be provided with accessory power outlet (4) on the housing (1), swivel arm (2) is rotationally connected with housing (1) and drives rotation by throttle plate pin, be fixed with brush pole piece (5) on the swivel arm (2), brush pole piece (5) rotates with swivel arm (2), brush pole piece (5) contacts with potentiometer resistance film (3) and can go up at potentiometer resistance film (3) and move, potentiometer resistance film (3) is connected with accessory power outlet (4) circuit, and it is characterized in that: described swivel arm (2) is provided with torsion spring (6).
2. a kind of throttle position sensor according to claim 1 is characterized in that: described housing (1) is structure as a whole with accessory power outlet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202145490U CN201322621Y (en) | 2008-12-23 | 2008-12-23 | Throttle position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202145490U CN201322621Y (en) | 2008-12-23 | 2008-12-23 | Throttle position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322621Y true CN201322621Y (en) | 2009-10-07 |
Family
ID=41160001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202145490U Expired - Fee Related CN201322621Y (en) | 2008-12-23 | 2008-12-23 | Throttle position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322621Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175272A (en) * | 2011-01-21 | 2011-09-07 | 上海奥众汽车部件制造有限公司 | Position sensor for throttle body |
| CN110806167A (en) * | 2019-10-29 | 2020-02-18 | 覃向阳 | Throttle valve position detection device |
-
2008
- 2008-12-23 CN CNU2008202145490U patent/CN201322621Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175272A (en) * | 2011-01-21 | 2011-09-07 | 上海奥众汽车部件制造有限公司 | Position sensor for throttle body |
| CN110806167A (en) * | 2019-10-29 | 2020-02-18 | 覃向阳 | Throttle valve position detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20101223 |